EP0540398B1 - Ensemble de connexion du type à bouclage de circuit - Google Patents

Ensemble de connexion du type à bouclage de circuit Download PDF

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Publication number
EP0540398B1
EP0540398B1 EP92402857A EP92402857A EP0540398B1 EP 0540398 B1 EP0540398 B1 EP 0540398B1 EP 92402857 A EP92402857 A EP 92402857A EP 92402857 A EP92402857 A EP 92402857A EP 0540398 B1 EP0540398 B1 EP 0540398B1
Authority
EP
European Patent Office
Prior art keywords
connection assembly
switch
value
actuation member
connector
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Expired - Lifetime
Application number
EP92402857A
Other languages
German (de)
English (en)
French (fr)
Other versions
EP0540398A1 (fr
Inventor
Hervé Bricaud
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
ITT Composants et Instruments SA
Original Assignee
ITT Composants et Instruments SA
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by ITT Composants et Instruments SA filed Critical ITT Composants et Instruments SA
Publication of EP0540398A1 publication Critical patent/EP0540398A1/fr
Application granted granted Critical
Publication of EP0540398B1 publication Critical patent/EP0540398B1/fr
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

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Classifications

    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01R—ELECTRICALLY-CONDUCTIVE CONNECTIONS; STRUCTURAL ASSOCIATIONS OF A PLURALITY OF MUTUALLY-INSULATED ELECTRICAL CONNECTING ELEMENTS; COUPLING DEVICES; CURRENT COLLECTORS
    • H01R13/00—Details of coupling devices of the kinds covered by groups H01R12/70 or H01R24/00 - H01R33/00
    • H01R13/66—Structural association with built-in electrical component
    • H01R13/70—Structural association with built-in electrical component with built-in switch
    • H01R13/703—Structural association with built-in electrical component with built-in switch operated by engagement or disengagement of coupling parts, e.g. dual-continuity coupling part
    • H01R13/7031—Shorting, shunting or bussing of different terminals interrupted or effected on engagement of coupling part, e.g. for ESD protection, line continuity
    • H01R13/7033—Shorting, shunting or bussing of different terminals interrupted or effected on engagement of coupling part, e.g. for ESD protection, line continuity making use of elastic extensions of the terminals

Definitions

  • the present invention relates to a connection assembly of the type comprising two complementary connectors, such as a plug and a socket of the circuit looping type.
  • This type of connector also called “self-looping” is used when it is desired, for example, to connect a device in series in an existing circuit without interrupting the circuit for a period greater than a determined authorized breaking time of very low value, for example of the order of a few hundred microseconds.
  • the base which is interposed in the circuit comprises one or more pairs of electrical contact elements of which the two contact elements are, in the uncoupled state of the plug and the base, electrically connected to each other by a connection device comprising a switch, the opening of which is caused when the base is coupled to an additional plug connected to the device to be connected in series .
  • the invention provides an electrical connection assembly of the type comprising first and second complementary connectors, each comprising a housing in which is insulated an insulating block which receives electrical contact elements, and which are provided for be coupled by relative axial displacement of the two housings, and of the type in which at least two electrical contact elements of the first connector are, in the uncoupled position, electrically connected together by a connection device comprising a switch whose opening is caused during of the coupling operation of the two connectors, characterized in that the device comprises two contact blades, each of which is connected to one of said two contact elements and whose free ends are in mutual contact in the uncoupled position, a member actuator slidably mounted axially in the housing of the first co nnector between a rest position in which the switch is in the closed position and an active position in which an actuating finger of the actuating member causes the opening of the switch by interrupting contact between said free ends of the contact blades, the actuating member being subjected on the one hand to the action
  • FIG. 1 shows a connection assembly 20 of the type comprising a first connector or socket 22 and a second connector or plug 24 which are illustrated in the uncoupled position at the top and in the coupled position at the bottom.
  • the two connectors 22 and 24 are generally cylindrical in shape and have a common central axis X-X.
  • the first connector 22 includes a housing 26, an insulating block 28 in two front 29 and rear 31 and a plurality of electrical contact elements 30 which are received in cells 33 distributed regularly around the axis XX and which, in the embodiment illustrated in FIGS. 1, 7 and 8 are six in number.
  • the section plane of Figure 1 corresponds to the section line 7-7 of Figure 8 and passes through the axes of two contact elements 30 called conventional, that is to say which are not electrically connected to d other contact elements 30 of the first connector 22.
  • the second connector 24 comprises, in a known manner, a housing 32, an insulating block 34 in two parts front 35 and rear 37, and six contact elements 36 complementary to the elements 30.
  • the axial coupling of the two connectors 22 and 24 is for example of the type comprising a coupling ring 38 whose rotation causes, by means of lugs and helical ramps, the relative axial sliding of the two housings 26 and 32 according to direction XX.
  • the two other pairs of electrical contact elements of the first connector 22 arranged on either side of the plane P passing through the axis XX (see FIG. 8) and perpependicular to the section plane of FIG. 1, are of the type comprising each two contact elements 30A and 30B received in cells 33A and 33B and which, in the uncoupled state, are electrically connected to each other by a connection device comprising a switch, the opening or closing of which must be rapid.
  • the contact element 30A has a cylindrical rear portion 44A which is crimped in a hole formed in a contact blade 46A.
  • the portion 48A of the blade in which the hole 50A is formed extends in a plane perpendicular to the axis of the connector and to the plane of FIG. 1 and is extended by a coplanar end branch 52A whose free end 54A cooperates with the free end 54B of the end branch 52B of the contact blade 46B associated with the contact element 30B whose rear cylindrical portion 44B is crimped in the portion 48B which it passes through in a hole 50B.
  • the two free ends 54A and 54B are, in the uncoupled position, in mutual electrical contact and are elastically stressed in mutual contact due to a slight camber of the blades 46A and 46B.
  • the transverse blades 46A and 46B crimped on the rear portions 44A and 44B are produced in the form of independent conductive sockets mounted between the two parts 29 and 31 of the insulating block 28 and into which, according to a known technique, the bodies of the contact elements 30A and 30B are inserted which are retained by the elastically deformable fingers 40 of split ferrules 41.
  • the body 62 of the actuator 60 has a hollow cylindrical front end portion 64 whose external cylindrical surface 66 is slidably mounted in a corresponding bore 68 of the insulating block 29 of the first connector 22.
  • the actuator 60 On either side of its general axis -YY, which in the mounted position of the actuator in the insulating block coincides with the axis XX, the actuator 60 has two actuating fingers 70 which, in the first mode embodiment, are constituted by the edge 72 of a bulge with two slopes 74 and 76. It is the edge 72 which cooperates with the portion facing the branch 52A of the contact blade 46A for move it away from the blade 46B and thus cause the axial distance of the ends 54A and 54B and therefore the opening of the switch.
  • the actuator comprises a rear end portion 80 in which two helical springs 82 are arranged symmetrically on either side of the Y-Y axis.
  • Each spring 82 is mounted slightly compressed in a housing in two opposite parts 84 and slightly inclined to form an obtuse angle between them, and its opposite ends 86 bear against the fund 88 of the two parts 84 of the housing which receives the spring 82.
  • each spring 82 is, in its stable position illustrated in FIGS. 2 to 4, curved towards the rear face 92 of the rear portion 80 of the actuator 60 and it extends in a recess 94 to 1. inside of which it can be deformed axially so that each spring 82 constitutes a spring of the monostable type whose sudden erasure can be caused by the action of a surface 96 called the triggering surface and which is formed opposite in the wall rear transverse 98 of the insulating block 31.
  • Each trigger surface 96 has for example a semi-cylindrical profile.
  • the two springs 82 arranged in parallel and whose design is identical, constitute a monostable spring which biases the actuator 60 towards its rest position which it occupies in the uncoupled position (see the upper part of FIG. 1) in which the edge front circular 65 of the cylindrical portion 64 of the actuator 60 is in axial abutment against a radial shoulder 67 of the bore 66 of the insulating block 29. In this so-called rest position, the convex median portions 90 of the springs 82 are in abutment against convex projecting surfaces 96.
  • the assembly which has just been described constituted by the two associated springs 82 constitutes the second spring which acts on the actuator 60 within the meaning of the invention as defined in the claims.
  • the springs 82 exert on the actuator a force, the value of which, called the erasure value, determines the triggering value of the switches for their simultaneous opening.
  • the springs 82 When, under the action of the surfaces 96, the middle portions 90 are stressed, deformed and then abruptly erased inside the recesses 94, the springs 82 then apply to the actuator 60 a force whose value, called residual value, determines the value for triggering the closing of the switches.
  • the triggering device also comprises a helical spring 100 which is the first spring which acts on the actuator 60 within the meaning of the invention as defined in the claims.
  • the spring 100 is a conventional compression helical spring mounted coaxially with the actuator 60 which it biases permanently axially towards its active position (illustrated in the lower part of FIG. 1), that is to say to the right considering this figure 1.
  • the first axial end 102 of the spring 100 is received inside the front portion 64 of the actuator 60 and bears against the transverse bottom 63 of the latter.
  • the second axial end 104 of the spring 100 bears against the bottom 106 of a hollow piston 108 mounted to slide axially in the insulating block 29.
  • the radial end face 110 of the piston 108 faces the coupling front face 112 of the insulating block of connector 24 which comprises a fixed control member forming pusher 114 which projects axially in the direction of face 110 of piston 108 with which it cooperates during coupling and uncoupling.
  • the action of the cylindrical control plunger 114 on the piston 108, and therefore on the helical spring 100 has the function of varying the value of the force applied by the spring 100 to the actuator 60.
  • the minimum value of this force, in the uncoupled state, is chosen to be less than the residual value of the second opposing spring constituted by the pair of springs 82.
  • the maximum value of the force applied to the actuator by the helical spring 100, in the final state coupled to the two connectors, is chosen so as to be greater than the value of sudden erasure of the second opposing spring.
  • the force applied by the spring 100 varies between these two extreme values, substantially linearly as a function of the relative axial travel of coupling or uncoupling of the two connectors.
  • connection assembly 20 operates as follows.
  • the user proceeds to couple the two connectors 22 and 24.
  • the value of the force applied by the first spring 100 gradually increases and, through the actuator 60, it urges the middle portions 90 of the springs 82 to bear against the trigger surfaces 96.
  • the actuator 60 and the two connectors then occupy their relative positions illustrated in the lower part of FIG. 1.
  • This actuation of the opening is thus independent of the coupling speed of the two connectors 20 and 22 and the opening of the switch occurs even if the user then interrupts his coupling action, or even if he reverses the direction of the relative axial displacement of the two connectors, for example with a view to uncoupling them.
  • the calibration and the elastic constant of the spring 100 are of course determined so that the value greater than the sudden erasure value applied by the spring 100 to the actuator 60 corresponds to a relative position of the two connectors 20 and 22 in which the elements electrical contact 30A and 30B are already electrically connected to the corresponding contact elements of the second connector 24, and this in order not to interrupt the circuits.
  • the initial value of the force applied to the actuator 60 by the spring 100 is much higher than the residual value of the force applied to it by the two springs 82 which are in the erased position, then it gradually decreases until 'so that it becomes lower than this residual value.
  • the springs 82 suddenly resume their stable position and the force which they apply to the actuator then suddenly reaches its so-called erasure value which is greater than the force applied at this instant by the first spring 100, and this by passing through an intermediate peak in the value of the force which makes it possible to abruptly compress the spring 100, even if the user interrupts the uncoupling operation.
  • the actuator 60 Under the action of the springs 82, the actuator 60 then instantaneously moves towards its rest position and at high speed by causing the simultaneous closing of the switches.
  • the opening trigger speed is thus also independent of the uncoupling speed of the two connectors 22 and 24.
  • the triggering of the opening of the switches occurs after a stroke of 2.6 mm.
  • the triggering of the closing of the switches occurs at 0.3 mm from the starting origin.
  • the curve shows the speed and brutality of the opening corresponding to a fall in effort equal to 2.3 N and of the closure corresponding to a rise of 2.2 N.
  • the speeds of movement of the actuator when controlling the opening and closing are completely independent of the speed of movement relative of the pusher 114 relative to the housing of the connector 22 and therefore of the speed of rotation of the locking ring.
  • the fundamental characteristic of the tripping device ensures opening and closing times of the switches which are very short and independent of the dexterity of the user.
  • the device also eliminates any risk of remaining "hanged", that is to say that one of the two switches is already open while the second remains closed.
  • the end branches 52A and 52B of the contact blades 46A and 46B each extend in a direction substantially parallel to the axis of the connector and are each bent for this purpose relative to the portion 48A, 48B of fixing of contact blades.
  • the free ends 54A and 54B are in mutual contact on at least one point located substantially on the axis of the connector.
  • the end branches 52A and 52B extend through an orifice 118 formed in the body of the actuator 60 and which is divided in its center by a partition 119 which constitutes the actuating finger of the switch.
  • the finger 119 of insulating material extends between the free ends 54A and 54B which it has slightly spaced radially outward.
  • the rear face of the actuator 60 is extended axially towards the rear by a member 120 produced in the form of an elastic clamp with two jaws 122 which cooperate with a corresponding blind hole 124 formed in the rear wall 98 of the insulating block 31.
  • the free ends 126 of the jaws 122 are chamfered at 128 and have lateral surfaces 130 substantially parallel to the axis.
  • the chamfers 128 first come to bear against the edge of the open end 132 of the blind hole 124.

Landscapes

  • Details Of Connecting Devices For Male And Female Coupling (AREA)
  • Push-Button Switches (AREA)
EP92402857A 1991-10-31 1992-10-19 Ensemble de connexion du type à bouclage de circuit Expired - Lifetime EP0540398B1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
FR9113502 1991-10-31
FR9113502A FR2683399A1 (fr) 1991-10-31 1991-10-31 Ensemble de connexion du type a bouclage de circuit.

Publications (2)

Publication Number Publication Date
EP0540398A1 EP0540398A1 (fr) 1993-05-05
EP0540398B1 true EP0540398B1 (fr) 1995-11-29

Family

ID=9418537

Family Applications (1)

Application Number Title Priority Date Filing Date
EP92402857A Expired - Lifetime EP0540398B1 (fr) 1991-10-31 1992-10-19 Ensemble de connexion du type à bouclage de circuit

Country Status (4)

Country Link
US (1) US5352128A (hr)
EP (1) EP0540398B1 (hr)
DE (1) DE69206388T2 (hr)
FR (1) FR2683399A1 (hr)

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US5484298A (en) * 1994-02-08 1996-01-16 Sony Corporation Self-terminating XLR connector device
CA2147410A1 (en) * 1995-04-20 1996-10-21 Robert L. Romerein Circuitry for use with coaxial cable distribution networks
CA2160854A1 (en) * 1995-10-18 1997-04-19 Robert L. Romerein Top exit coupler
DE10123536C1 (de) * 2001-05-15 2003-01-23 Methode Electronics Inc Bedieneinrichtung für einen elektrischen Schalter mit einem versenkbaren Bedienknopf
US7238035B2 (en) * 2005-06-14 2007-07-03 Trompeter Electronics, Inc. Normal-through jack with monitor and test ports
US7393249B2 (en) 2006-04-21 2008-07-01 Trompeter Electronics, Inc. Interconnection and monitoring module
TWM307212U (en) * 2006-06-05 2007-03-01 Hon Hai Prec Ind Co Ltd Electrical card connector
US7354287B1 (en) * 2006-10-31 2008-04-08 Caterpillar Inc. Shorting connector
US7789685B2 (en) * 2006-12-18 2010-09-07 Caterpillar Inc Electrical shorting system
US7616421B2 (en) * 2006-12-18 2009-11-10 Caterpillar Inc. Electrical interface system
US8328573B2 (en) * 2009-06-18 2012-12-11 Thomas & Betts International, Inc. Electrical connector
US7878828B1 (en) * 2010-05-10 2011-02-01 Knoll Jr Carl Frank Safety socket with plug configuration sensitive switch

Family Cites Families (12)

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Publication number Priority date Publication date Assignee Title
US1160619A (en) * 1911-11-20 1915-11-16 Cutler Hammer Mfg Co Electric attachment device.
US1470824A (en) * 1919-07-21 1923-10-16 E H Freeman Electric Company Electrical connector device
US1731893A (en) * 1927-06-04 1929-10-15 Fischer Carl Electric connecter
CH336111A (de) * 1955-05-23 1959-02-15 Ciba Geigy Schwadensicheres elektrisches Schaltgerät
JPS5250718B2 (hr) * 1973-05-23 1977-12-27
DE2418634A1 (de) * 1974-04-18 1975-10-30 Schaltbau Gmbh Elektrische steckvorrichtungen
US3914564A (en) * 1974-08-22 1975-10-21 Square D Co Automatic by-pass device for a watt hour meter socket
US4264115A (en) * 1978-03-01 1981-04-28 Bunker Ramo Corporation Interstage electrical connector
DE2942720C2 (de) * 1979-10-23 1982-05-27 Standard Elektrik Lorenz Ag, 7000 Stuttgart Drucktaste mit Schnappwirkung
GB8600831D0 (en) * 1986-01-15 1986-02-19 Amp Italia Modular jack
DK456788A (da) * 1987-12-03 1989-06-04 Evaristo Garcia Ramos Datamatkoblingsorgan med automatisk sloejfelukning
SE462936B (sv) * 1988-08-08 1990-09-17 Hasselblad Ab Victor Elektriskt kontaktblock

Also Published As

Publication number Publication date
DE69206388D1 (de) 1996-01-11
US5352128A (en) 1994-10-04
EP0540398A1 (fr) 1993-05-05
DE69206388T2 (de) 1996-04-18
FR2683399A1 (fr) 1993-05-07
FR2683399B1 (hr) 1995-04-28

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